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(No Model.) 2 sheets -sheet 1. G. B. WIGGIN 8v J. BARTLETT.

SHOE SOLE GHAN'NELING MACHINE.

' Patented Ma j N PETERS. Phuwlilho n her, wnhin tm D46.

(No Model.) 2 SheetsSheet 2.

G. B. WIGGIN 8v J. BARTLETT. SHOE SOLE GHANNELING MACHINE.

No. 403,813. Patented May 21 1889. 1 7/ 3.

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11mm mm UNITED STATES PATENT OFFICE.

GEORGE B. WIGGI N, OF SOUTH NEW MARKET, AND JONATHAN BARTLETT, OF.EPPING, NETV HAMPSHIRE, ASSIGNORS OF ONE-HALF TO JOHN V. HOARD,

OF PROVIDENCE, RHODE ISLAND.

SHOE-SOLE-CHANNELING MACHINE.

SPECIFICATION forming part of Letters Patent No. 403,813, dated May 21,1889.

Application filed May 7, 1888. Serial No. 273,066. (No model.)

To all whom it may concern:

Be it known that we, GEORGE B. \VIGGIN, of South New Market, Rockinghamcounty, State of New Hampshire, and JONATHAN BARTLETT,

of Epping, Rockingham county, State of New Hampshire, have inventedcertain new and useful Improvements in Shoe-Sole-Ohannelin g Machines;and we do hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part 15. of this specification.

Ourinvention relates to shoe-sole-channeling machines, or machines whichwill make channels in the soles of shoes for the purpose of receivingthe stitches, so that they will be invisible when the shoe is completed.

Our improvement consists in such a machine that will cut a channel orgroove from the surface of the sole of the shoe toward its edge," and atthe same time out another chan- 2 5 nel in the edge of the sole itself,all as more particularly hereinafter described.

' In the accompanying drawings, Figure 1 illustrates a side elevation ofour improved channeling-machine. Fig. 2 is a plan of the 0 same. Fig. 3is a longitudinal section. Fig. 4 is a transverse section through theline 4 4: of Fig. 1. Fig. 5 is a front elevation, partly in section.Fig. 6 is a section through the line 6 6 of Fig. 5. Figs. 7 and 8 areplans and an 3 5 edge View of a piece of the channeled sole,

and Fig. 9 is an edge View enlarged of the vertically-hung knife.

Similar letters represent like parts in all the figures.

A is the base or bed of the machine, and B B are upright standards forsupporting the working mechanism. Loosely journaled in said standards isa horizontal shaft, 0, upon which are keyed the crank D, gear E, andbevel- 5 gear F, the last being on the end of the shaft farthest fromthe crank D. Extending in front of the standard B is a bracket, G, inwhich is loosely journaled the upright post or shaft H. On the upper endof this post is the bevel-gear I, which is adapted to engage with thegear F, and on the upper surface of the gear I is a beveled disk, a,which may either form part of said gear or be attached to it in anyappropriate manner.

The post H may be held in place by having a screw-thread and a nut, h,on its lower end.

J is the upper frame of the machine, which is pivoted at one end to thestandard B by means of the slot 1) and pin 1), the object of the slotbeing to allow the frame J and the parts which it supports being readilydetached or lifted from the lower part of the machine. The front end, K,of the frame J is supported by means of a screw-rod, c, passingvertically through said frame, and having its lower end adapted to reston top of a vertical rod, d, at tached to the standard B. The screw onthe rod 0 allows of vertical adjustment of the outer end, K, of theframe J on the rod d, and also serves to support the entire outer end ofthe frame J, with its connecting parts, and to prevent them from bearingon the table A. A horizontal pin, e, passing from the standard B througha vertical slot, 6', in the frame J, serves to hold the latter in properposition laterally, and also to allow its being lifted away from thestandard B.

Loosely journaled in the frame J is the horizontal shaft L, upon whichare keyed the gear M, which is adapted to engage with the gear E, andthe wheel N, having a roughened or corrugated periphery, e. The disk aserves as a rest or turn-table for the piece of leather which is placedupon it, and said disk, with the wheel N, serves as feed-rollers for theleather when the latter is being channeled.

In the front end of the frame J is a vertical dovetailed groove, and inthis groove is adapted to slide a dovetailed block, 0. In the bottom ofthis block is secured the knife f by means of the screw 9, and the topof said block is provided with a yoke, 2, which embraces the screw jbetween its two collars j j, and said screw, entering the frame J,serves as a means of vertical adjustment of the block O and its knife f.The horizontal knife is is adapted to be removably attached to thestandard B in the following manner: The 100 able block P by means of thescrew k and slot is", and said block is adapted to rest upon the bottomZ of a recess of the standard on the base Z of the recess.

B, to be retained by thevertical arms of the same, and also to bereadily removed or lifted out of said recess when desired. To accomplishthese purposes, the block P is provided with the two vertical grooves orguideways m m, for embracing the arms of the standard B, the verticalgroove n, to allow the block to pass the pin e, and the vertical hole d,to allow the rod d to enter and pass through the same.

By the above means, when the frame J is lifted or swung back, the blockP and its knife '70 may be lifted out from the machine to be repaired,or a new block or knife can be inserted with very little trouble. Thevertical adjustment of the knife is brought about by means of a smallvertical screw, 0, passing through the block P and its lower end resting(See Fig. 1.) By raising or lowering the screw 0, so that the part of itextending below the block P is shortened or lengthened, the block andits knife in will be either lowered or raised. For convenience ofadjusting this screw (to raise or lowerthe block'P) without throwingback the frame J, a vertical hole, is provided in said frame directlyover the screw 0, so that a small screw-driver may be inserted in saidhole to turn the screw. A small spring, q, is

inserted between the block P and the lower side of the end K of theframe J, to ease the pressure of the rod 0 on the rod d.

Attached to the side of the frame J, near its front, is the presser-footr, vertically ad: justable by means of the screw r and slot r".

Q is a guide, laterally adjustable on the bracket G by means of thescrew 8 and slot 8, and this guide is for the purpose .of regulating thedistance between the edge of the material to be cut and the cut of theknife f, and also to regulate the depth of the cut of the knife 10.

R is another guide attached to the end of the frame J and adapted toassist the presserfootr in holding the goods in place on the disk a,said guide B bearing on the goods near its edge, while the presser-footbears on them farther back. The frame is kept down upon the standards BB with the requisite pressure, and so that the gears E and Mwill engageby means of the rod R and tension-spring T on the lower end of the same.

The frame J is removably attached to the upper end of said rod by aloose pin, t, pass: ing' through said rod and frame. The upper end ofthe springT is adapted to rest against the lower surface of the table towhichthe machine is to be attached, and the lower end of the springrests upon anut, t, on the screwthreaded lower end of the rod R orwashers may be inserted between each end of the spring and the table andnut t, respectively. The tension of the spring and rod and the pressureof the frame J upon the standards B B are regulated by the nut t. Anadjustable collar, u, is attached to the rod R. One end of a lever, S,is adapted to bear against the lower side of said collar, and thus raisethe rod R and end K of the upper frame when desired. This may be don every readily by means of a pedal attached to therod T by a strap, '0.(See Fig. 1.)

U is a loose vertical rod passing through the standard B, having itsupper end bearing against the bottom of the block P, and its lower endsupported by the end of a lever, V. This. lever, through the rod U, isadapted to raise the block P and its knife 70, and it may be readilyaccomplished by means of a pedal justable rod, X, screwed to the base Aof the machine, serves as a stop to the downward movement of the outerarm of the lever V, and limits its play as well as the upward play ofthe rod U and block P. r

., The knives or cutters we. prefer to make as shown in the accompanying.drawings, (see Figs. 1, 3, 5, 6, and 9,) one cutting-edge, f, of theknife f being vertical and formed from its shank, andthe lower portionof its shank and the adjacent edge f meeting it at an oblique angle.(See Figs. 1 and 9.) The two cutting-edges of the knife is should meetat an acute or right angle, with the shank of the knife meeting the endof one edge and parallel to a line bisecting the angles. (See Figs. 1,3, and 6.) The cutting end of the knife k and the outer end of the knifef should look in Figs. 1 and 3, to allow them to make the proper cuts inthe leather.

When it is desired to channel a shoe-sole, the proper tension is givento the upper frame, J, by the rod R, spring T, and nut t. The

is advanced the deeper the cuts will be. The knife 70 is raised orlowered to the required position by the screw 0. (See Fig. 4.)

cut away from the upper part of the leather, and vice versa. The guide Qis then adjusted laterally by means of the screw 8 and nut s, so thatthe distance between the outer edge,

be the same as the required distance from the edge y of the sole Y tothe vertical cut y, and so that the distance between the edge 8 and theapex or end of the knife it shall be the same as the required depth ofthe edge cute in the sole Y. The frame J is then raised by the lever S,and the shoe-sole, which has previouslybeen cut into proper shape,isinserted between the disk or table a and the presser-foot r, wheel N,and guide R, with the outer side of the sole resting upon said disk rand the edge of the sole resting against the edge 8" of the guide Q. Theend K of the frame J is then toward each other in the machine, as shownThe more the knife is raised the more will be 3'', of the guide to theend of the knife f will knives are adjusted by the means above describedto give the proper depths of the cuts. The more the knife f is loweredand the knife- IIO allowed to descend with its several attached.

parts, including the knife f, presser-foot, and guide R, and the sole isheld by them in proper position to be channeled. The crank D is thenturned away from the operator in the direction of the arrow 2, and thesole will be fed, guided, and channeled without any further act of theoperator. The knife 70 cuts a strip from the edge of the leather,triangular in cross-section, and leaves a triangular groove, as shown atz in Figs. 7 and 8. If at a certain portion of the sole-where the heelis to be attached, for eXampleit be desired to have the lower portion,5, of the sole left by the out .2 thicker, as in Fig. 8, the block P andits knife is are raised by the lever V and rod U until this portion ofthe sole has been channeled, after which said block and knife areallowed to descend to their former posi tions. The distance to which theknife is can be raised by the leverV is limited by the adjustable stopX. The crank D is turned by the operator until the sole has beenchanneled all around, and the entire operation can be performed in muchless than a minute. If different kinds of channels are required in theshoe-sole, different kinds of knives may be readily substituted forknives f and k.

\Vhat we claim as new, and desire to secure by Letters Patent, is-

1. In a shoe sole-channeling machine, the combination,with theknife-block support, of the knife-block O, adjustably supported thereonand having the yoke 1 and the adjustingserewj, provided with the collarsj, substantially as shown and described.

2. In a shoe-sole-channeling machine, the combination, with a standard,B, having the Vertical arms, as set forth, of the removable knife-blockP and its horizontal knife, and the recessed guideways m m, allsubstantially as shown, and for the purposes described.

3. In a shoe-sole-channeling machine, the combination, with theremovable block P, of the knife 70, screw 76, and slot is", allsubstantially as shown and described.

4. In a shoe-so1e-channeling machine, the combination, with theknife-block P and its frame or support, of the loose rod U, having itsupper end adapted to bear against the bottom of said block and to raiseit in its frame independently of the other mechanism, and the lever V,all substantially as shown, and for the purpose described.

5. In a shoe-sole-ehanneling machine, the combination of the knife-blockP, the loose rod U, with its upper end adapted to come into directcontact with said block, the lever V, and vertieally-adjustable rod orstop X, all

substantially as and for the purpose described.

GEORGE B. WIGGIN. JONATHAN BARTLETT.

\Vitnesses:

WILLIAM H. BELKNAP, GEORGE W. HILLIARD.

